Sony DTC-670 User manual

SONY
Digital Audio
Tape Deck
Operating Instructions
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Operating Instructions
Before operating the unit, please read this manual
thoroughly and retain it for future reference.
Owner's Record
The model number is located on the rear exterior and serial
number is on the rear. Record the serial number in the
space provided below. Refer to these numbers whenever
you call upon your Sony dealer regarding this product.
Model No. DTC-670
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
Serial No.
Or NCREIO)N
RISK OF ELECTRIC SHOCK
OO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the prod-
uct’s enclosure that may be of suffi-
cient magnitude to constitute a risk of
electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature accompa-
nying the appliance.
INFORMATION
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residantial installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interferential will not occur in a
particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or
more of the following measures:
— Reorient or relocate the receiving antenna.
~ Increase the separation between the equipment and
receiver.
— Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician
for help.
CAUTION
You can cautioned that any changes or modifications not
expressly approved in this manual could void your authority
to operate this equipment.

Precautions
e Before operating the unit, be sure that the operating
voltage of your unit is identical with that of your local
power supply.
e The unit is not disconnected from the AC power source
(mains) as long as it is connected to the wall outlet,
even if the unit itself has been turned off.
@ Should any solid object or liquid fall into the cabinet,
unplug the unit and have it checked by qualified
personnel before operating it any further.
e@ Unplug the unit from the wall outlet if it is not to be used
for an extended period of time. To disconnect the cord,
pull it out by grasping the plug. Never pull the cord
itself,
Before making program source connections, be sure to
unplug the unit.
e Do not install the unit in a location near heat sources
such as radiators or air ducts, or in a place subject to
direct sunlight, excessive dust, mechanical vibration or
shock.
e@ Donot place anything on the top of the cabinet. The top
ventilation holes must be unobstructed for the proper
operation of the unit and to prolong the life of its
components.
If the unit is brought directly from a cold to a warm location,
moisture may condense inside the unit. In this condition,
the tape may adhere to the head drum and be damaged, or
the unit may not operate correctly. Always remove the
cassette when the unit will not be used.
If moisture is present...
e Function controls will not operate.
e@ All operations will stop.
When the CAUTION indicator lights and the unit will not
operate
Leave the unit turned on for about an hour.
If you have any question or problem concerning your unit,
please consult your nearest Sony dealer.

Bile) (=e) m Oroler (=. 01 &)
Before using the DAT deck
Warning
Precautions
Digital audio tape ..
Overview of the Digital Audio Tape Deck
Connections
Rear panel jacks ..
Connecting cords ......
Connection examples ....
Identifing Parts and Controls.....
Front panel/remote commander .
Remote commander operation ...
Installing batteries......
Display window 2
Cassette loading ..........ceccssesserssessesceereresesssssssssessecsseeees
Recording
Before recording ...
Blank section and sound muted portion..
Absolute time codes.......
Re@COrdiNng ....... ccc ee ceees
Creating a sound muted portion (Record muting).
ENG GOB0ON: scccoayedteccebicceness
CD synchronized recording ....
Writing sub codes
Sub codes ...
Start ID
Writing automatically during recording
Writing manually during recording
Writing manually during playback (The rehearsal
function)
Adjusting the position .
Erasing
Program numbers
Writing automatically during recording .
Renumbering ....
Erasing ....
Skip ID we.
Writing during recording fs
Writing an eyeace (The rehearsal function) ....... 26
Erasing...
End ID...........
Writing during recording....
Writing during playback (The rehearsal function) .
EAS HN reds eccccence swssiecveesadsds tedved gen caiwe Wa ddca Gedurecenivcels 28
Playback
Playback
Playing back ..
Display window .....
Various playback operations
Repeat play oe
Automatic music sensor operation .
Music scan ou...
Designating the desired selection ..
Skip DAY. cic icesies cxorsasacneies
Auto play: restarting playback after rewinding...
Random music sensor (RMS) operation ...
Timer activated operation...........
Timer activated recording..
Timer activated playback
Additional information
Maintenance ........ cece ccc eseeeeteesseees
Cleaning the cabinet
Cleaning the head ..........
Guide to the serial copy management system
Troubleshooting...
Specifications

Overview of the Digital Audio Tape Deck
Serial copy management system
This unit utilizes the serial copy management system
that permits digital-to-digital recording for one
generation. You can record CD sound or other digital
formats through a digital-to-digital connection. (See
page 36.)
Three sampling frequencies
Recording/playback can be done with three sampling
frequencies (48 kHz, 44.1 kHz and 32 kHz).
48 kHz: For analog and digital input signals in a
standard mode.
44.1 kHz: For compact disc and pre-recorded DAT
tape.
32 kHz: For analog input signals in a long-play mode.
Long play mode
This unit can operate in a long-play mode. Analog input
signals can be recorded or playback for up to four
consecutive hours when the DT-120 DAT cassette tape
is used. The sampling frequency will be 32 kHz in the
long play mode.
Visible cassette loading
You can view the tape operation through the lid of the
cassette compartment. Due to a revolutionary new
transport mechanism, cassette loading time has been
significantly reduced.
Excellent sound quality
¢ 1-bit A/D converter
For the A/D converter section which converts analog
input signals to digital signals, the unit employs a 1-
bit A/D converter which theoretically generates no
zero-cross distortion for a clear, elegant sound
quality.
Pulse D/A converter
Superior playback performance is achieved with a 1-
bit D/A converter.
Rich variety of subcode information
This unit can record subcode information such as Start
IDs, program numbers, Skip IDs, and absolute time
data, enabling you to quickly locate tunes and display
the playback time in the same manner as when playing
compact discs.
Post edit recording of sub codes
You can record or rewrite the following sub codes after
the audio signal recording has been completed.
Start ID: Signifies the beginning of a selection.
Program number: Gives a number to the selection.
Skip ID: Signifies the beginning of a portion to be
skipped.
End ID: Signifies the end position of recording/
playback.
Since sub codes are written on the tape separately from
audio signals, the audio signals are not affected.

Connections
This section describes about the connecting cords and the
analog and digital connections. Select the connection
depending on your equipment connected with this unit.
Rear Panel Jacks
LINE IN (line input) jacks (phono jack)
Connect to the recording outputs of an amplifier. Signals
supplied by the amplifier can be recorded using the
sampling frequency of 48 kHz in the standard play mode
or 32 kHz in the long play mode.
LINE OUT (line output) jacks (phono jack)
Connect to the DAT or tape inputs of an amplifier. The
piayback signal of this deck will be output.
COAXIAL/OPTICAL DIGITAL IN (digital input) jacks
(coaxial phono jack/optical jack)
Connectto the digital outputs of an amplifier having a built-
in D/A converter or other digital source, such as a CD
player for digital-to-digital recording.
OPTICAL DIGITAL OUT (digital output) jack
(optical jack)
Connect to the digital inputs of an amplifier having a built-
in D/A converter or another DAT deck, for playback of a
DAT cassette or digital-to-digital recording.
Notes on connection
e Use the connecting cords specified in the illustrations.
e@ Turn off the power for all equipments before making
connections.
e Be sure to insert the plugs firmly into the jacks. Loose
connections may cause hum and noise. When
unplugging, grasp the plug and not the cord.
Notes on the optical cable
@ Donot bend the cord. When the cord is not used, curl it
with a diameter of more than 15 cm (5 7/g inches).
e@ Do not use it under high temperatures.
@ When the optical cable is not connected, cover the
OPTICAL IN/OUT jacks with the supplied caps.
Note on sound signals
When connecting an optical cable to the DIGITAL IN/
DIGITAL OUT jacks, sound signals (L/R) are transmitted
together through the cable.
Connecting Cords
There are following three types of connecting jacks at the
rear of the deck. Each type of jack requires a different type
of connecting cord.
Audio signal connecting cord
(supplied, or optional RK-C77 etc.)
Red White
af;
See oar e:
Oe =e-+@
LINE OUT White Red = LINE IN
Coaxial digital connecting cord
ional VMC-1ES, etc.
coaxiaL — (Ptona Sete) COAXIAL
our’ IN
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* This unit is not equipped with the COAXIAL OUT jack.
Optical cable
(optional POC-15, etc.)
OPTICAL OUT OPTICAL IN
How to connect the optical cable
Remove the cap.

| Connection Examples
——- : Analog signal
—— : Digital signal
(coaxial cable or optical cable)
cc, : Signal flow
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When recording via digital-
to-digital connection,
connect a DAT deck (the
digital input) to DIGITAL
OUT (OPTICAL) of the
DTC-670.
When recording via digital-
to-digital connection,
connect the sound source
equipment (the digital
output) to DIGITAL IN
(COAXIAL or OPTICAL) of
the DTC-670.
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Ip
DTC-670
ates | ee:
— == to a wall outlet
When connecting a microphone
Connect the analog output of a stereo microphone
amplifier to LINE IN of the DTC-670.
Note
If “COPY PROHIBIT” appears in the display window,
recording via digital-to-digital connection cannot be
performed.
In this case, connect the sound source equipment using
LINE IN and OUT jacks.

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This section describes the names and functions of each parts of this unit. Before operating this unit, please read carefully.
Front Panel/Remote Commander
[1] POWER switch
Turns the power on and off.
[2] Cassette compartment
Insert a cassette with the window side up and the safety
tab facing you.
(3) Display window
[4] END ID buttons
WRITE: Press to write the ID signifying the end of
playback or recording.
ERASE: Press to erase the end ID.
SKIP ID buttons
WRITE: Press at the beginning of the portion you may
wish to skip later. A skip ID will be written from the
point where you pressed this button.
ERASE: Press to erase the nearest skip ID which is
before the current position.
[6] START ID buttons
AUTO: Press to turn on and off the AUTO indicator.
When the AUTO indicator is lit, the start 1D will
automatically be written during recording. When the
AUTO indicator is not lit, press the START ID WRITE
button at the point where you want to write a start ID.
WRITE: Press to write the start [D at the desired point
during recording or playback.
ERASE: Press to erase a start ID, When a start 1D and
a program number are written on the tape, both
codes are simultaneously erased by pressing this
button.
RENUMBER: Press to renumber all programs on the
tape. When only the start IDs are written, pressing
this button will insert the proper program numbers
beginning with “1”. The tape will rewind and start
from the beginning to accomplish this function.
INPUT selector
Set according to the signal to be recorded.
ANALOG: For recording from the equipment
connected to the LINE IN jacks.
OPTICAL: For recording from the equipment
connected to the DIGITAL IN (OPTICAL) jack.
COAXIAL: For recording from the equipment
connected to the DIGITAL IN (COAXIAL) jack.
REC LEVEL (recording level) control
Adjust the recording level for the analog input signals.
When recording digital signals, it is not necessary to
adjust the recording level.

[9] BALANCE control
Adjust the recording balance for the analog input signals.
When recording digital signals, it is not necessary to
adjust the recording balance.
Remote sensor
Receives the signal from the remote commander.
REC MODE selector
Normally set to the STANDARD position.
When this selector is set to the LONG position, you can
record analog input signals or digital signals with 32 kHz
in the long play mode.
TIMER switch
Normally set to the OFF position. When recording or
playing back at the desired time using a commercially
available audio timer, set to the REC position or the PLAY
position respectively.
COUNTER buttons
MODE: Selects the counter display in the display window
among the linear counter (tape running time), absolute
time, elapsed time of the selection, and total remaining
time of tape. Each time you press the button, the
display changes sequentially.
RESET: Resets the linear counter to “OM 00S".
OPEN/CLOSE button
Press to open or close the cassette compartment.
Tape operating buttons
@ (stop): Press to stop recording or playback.
» (play): Press to play back the tape.
@REC (recording): Press to enter the record-pause
mode. To start recording, press the PAUSE or >
button.
ItPAUSE (pause): Press to stop for a moment during
recording or playback. Torestart recording or playback,
press this button again or press the » button.
If the unit is left in the pause mode for about 10
minutes, it will automatically be released and the
deck will enter the stop mode. To restart recording
or playback from the stop mode, press the @REC or
» button respectively.
OREC MUTE (record muting): Press to insert a sound-
muted portion (space).
</> (AMS): Press to locate the beginning of the
selection during the playback.
<¢</>> (rewind/review, fast-forward/cue): In the stop
mode, press to rewind/fast-forward the tape. During
playback, press to rewind or fast-forward the tape
while listening to the sound.
Headphones jack
Insert the headphones plug to this jack.
PHONE LEVEL control
The PHONE LEVEL control adjusts the headphones volume
level.
9

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Front Panel/Remote Commander
DISPLAY MODE button
Changes the display mode. (Refer to page 12.)
Numeric buttons (0-9)
Designate the desired program number to be played
back before starting playback.
Designate the desired number in the record-pause
mode, the program number is written consecutively
from the designated number.
[20] CLEAR button
Use to cancel the program number which has been
mistakenly entered.
21] MUSIC SCAN button
Use this feature to listen to the beginning of each
selection successively.
22] RMS play buttons
ENTER: To program the selections in a desired order,
press this button after pressing the numeric buttons.
CHECK: Press to check the programmed contents.
REPEAT 14/ALL button
Press to play a desired portion repeatedly. Each time you
press the button, the indicatior changes as follows:
REPEAT 1 -» REPEAT ALL -> off
10
MARGIN RESET button
Press to reset the margin of peak level,
SKIP PLAY button
Press to activate the skip ID code function. The portion of
the tape previously marked will be skipped.
CD operation buttons
Operative only for the Sony CD player equipped with a
remote commander.
ll (pause): Press this button twice to start playback. To
enter the pause mode, press this button once.
k¢<q/m 1 (AMS): Press to locate the desired selection on
the Compact Disc during playback or in the stop mode.
CD SYNCHRO (CD synchronized recording) buttons
(The playback of the Sony CD player equipped with a
remote commander and the recording of the DAT deck
can be performed simultaneously.)
STANDBY: Press to set the unit to the record-standby
mode.
START: Press to start recording of the DAT deck and
then playback of the CD player.
STOP: Press to stop the DAT deck recording and the CD
player playback.